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Share-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2022
Share-Based Compensation |
Schedule of stock option activity | ​
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​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​
​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | Aggregate | ​
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | Intrinsic | ​
​ |  | Shares |  | Price |  | (Yrs.) |  | (000's) |
Outstanding at January 1, 2022 | ​ | 185,125 | ​ | $ | 63.03 | ​ | ​ | ​ | ​ | ​ | ​
Assumed stock options and warrants from ACBI merger | ​ | 23,410 | ​ | ​ | 40.73 | ​ | ​ | ​ | ​ | ​ | ​
Exercised | ​ | (9,703) | ​ |  | 42.25 | ​ | ​ | ​ |  | ​ | ​
Expired | ​ | (14) | ​ | ​ | 33.02 | ​ | ​ | ​ |  | ​ | ​
Outstanding at March 31, 2022 | ​ | 198,818 | ​ |  | 61.42 | ​ | 3.78 | ​ | $ | 4,554 | ​
Exercisable at March 31, 2022 | ​ | 198,818 | ​ | ​ | 61.42 | ​ | 3.78 | ​ | $ | 4,554 | ​
Summary of nonvested restricted stock | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted- |
​ | ​ | ​ | ​ | Average |
​ | ​ | ​ | ​ | Grant-Date |
Restricted Stock | ​ | Shares | ​ | Fair Value |
Nonvested at January 1, 2022 |  | 3,066 | ​ | $ | 67.31 | ​
Assumed restricted stock shares from ACBI merger | ​ | 84,224 | ​ | ​ | 90.00 | ​
Vested |  | (1,916) | ​ |  | 90.00 | ​
Nonvested at March 31, 2022 |  | 85,374 | ​ | $ | 89.19 | ​
Summary of nonvested RSUs | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | Weighted- |
​ | ​ | ​ | ​ | Average |
​ | ​ | ​ | ​ | Grant-Date |
Restricted Stock Units | ​ | Shares | ​ | Fair Value |
Outstanding at January 1, 2022 |  | 948,213 | ​ | $ | 67.01 | ​
Assumed restricted stock units from ACBI merger | ​ | 55,736 | ​ | ​ | 87.94 | ​
Granted |  | 282,952 | ​ |  | 83.50 | ​
Vested | ​ | (128,302) | ​ | ​ | 67.46 | ​
Forfeited | ​ | (1,464) | ​ | ​ | 87.88 | ​
Outstanding at March 31, 2022 |  | 1,157,135 | ​ | $ | 71.88 | ​

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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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